Php 将生成的pdf直接保存到文件夹-Codeigniter

Php 将生成的pdf直接保存到文件夹-Codeigniter,php,codeigniter,codeigniter-2,dompdf,Php,Codeigniter,Codeigniter 2,Dompdf,我想生成已创建的pdf并将其发送到文件夹,但出现错误,此错误: A PHP Error was encountered Severity: Warning Message: file_put_contents(http://localhost/NQCL1/workbooks/NDQA000000001/NDQA000000001.pdf) [function.file-put-contents]: failed to open stream: HTTP wrapper does not su

我想生成已创建的pdf并将其发送到文件夹,但出现错误,此错误:

A PHP Error was encountered

Severity: Warning

Message: file_put_contents(http://localhost/NQCL1/workbooks/NDQA000000001/NDQA000000001.pdf) [function.file-put-contents]: failed to open stream: HTTP wrapper does not support writeable connections

Filename: libraries/Dompdf_lib.php

Line Number: 13
Dompdf_lib.php//库文件

class Dompdf_lib extends Dompdf{

        function createPDF($html, $filename='', $stream=TRUE){  
            $this->load_html($html);
            $this->render();
            $this->set_paper('a4', 'potratit');
            if ($stream) {
                //$this->stream($filename.".pdf"); - This works just ok
                file_put_contents(base_url().'workbooks/s'.$filename.'/'.$filename.".pdf", $this->output()); 

            } else {
                return $this->output();
            }
        }

}
coa.php//controller

function generateCoaDraft($labref,$offset=0) {
    // error_reporting(1);
    $data['labref'] = $labref = $this->uri->segment(3);
    $data['information'] = $this->getRequestInformation($labref);
    $data['tests_requested'] = $this->getRequestedTests($labref);
    $data['trd'] = $this->getRequestedTestsDisplay2($labref);
    $data['compedia_specification'] = $this->getCOABody($labref);
   $html = $this->load->view('coa_v', $data, true);
   $this->dompdf_lib->createPDF($html, $labref);
}
如果我使用它而不是file_put…,这一行可以正常工作,如果我说STREAM=FALSE,它将返回空白页

$this->stream($filename.".pdf"); 
是本机PHP函数,因此将行更改为

file_put_contents('workbooks/s'.$filename.'/'.$filename.".pdf", $this->output());

通过在它前面加上$this->系统试图找到属于该类的函数(该类不存在),因此出现了错误。

我意识到我试图通过HTTP与服务器通信,我修改了代码,只使用了直接路径,它成功了,谢谢guyz

这:

为此:

file_put_contents('workbooks/s'.$filename.'/'.$filename.".pdf", $this->output());

只需在命令写入文件之前删除$this->。file_put_contents()是一个本机PHP函数。我删除了$this,现在又删除了一个新的连接错误。该错误是由于在文件路径中使用了http,而在路径中使用了base_url()。结帐非常感谢鲁尼,我现在弄对了
file_put_contents('workbooks/s'.$filename.'/'.$filename.".pdf", $this->output());